Linux Analysis Report
mG0CUyFnyP.elf

Overview

General Information

Sample name: mG0CUyFnyP.elf
renamed because original name is a hash value
Original sample name: 828bf4959426a8eebc4e529520986185.elf
Analysis ID: 1432265
MD5: 828bf4959426a8eebc4e529520986185
SHA1: e7caf86d4355f482e693c732424b3da11e4b72fb
SHA256: ee7a762e455f4e7f818b9a35152e2b03a58f170e408ff89a9136913ec55787bd
Tags: 32elfgafgytmips
Infos:

Detection

Gafgyt
Score: 80
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Contains symbols with names commonly found in malware
Opens /proc/net/* files useful for finding connected devices and routers
Sample contains strings that are user agent strings indicative of HTTP manipulation
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

Name Description Attribution Blogpost URLs Link
Bashlite, Gafgyt Bashlite is a malware family which infects Linux systems in order to launch distributed denial-of-service attacks (DDoS). Originally it was also known under the name Bashdoor, but this term now refers to the exploit method used by the malware. It has been used to launch attacks of up to 400 Gbps. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.bashlite

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: mG0CUyFnyP.elf Avira: detected
Found malware configuration
Source: mG0CUyFnyP.elf Malware Configuration Extractor: Gafgyt {"C2 url": "94.156.79.48:23"}
Multi AV Scanner detection for submitted file
Source: mG0CUyFnyP.elf ReversingLabs: Detection: 65%
Source: mG0CUyFnyP.elf Virustotal: Detection: 60% Perma Link

Spreading
barindex
Opens /proc/net/* files useful for finding connected devices and routers
Source: /tmp/mG0CUyFnyP.elf (PID: 5479) Opens: /proc/net/route Jump to behavior
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: unknown TCP traffic detected without corresponding DNS query: 94.156.79.48
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com

System Summary
barindex
Contains symbols with names commonly found in malware
Source: ELF static info symbol of initial sample Name: vseattack
Source: classification engine Classification label: mal80.spre.troj.linELF@0/0@2/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/mG0CUyFnyP.elf (PID: 5479) Queries kernel information via 'uname': Jump to behavior
Source: mG0CUyFnyP.elf, 5479.1.00007fffa9565000.00007fffa9586000.rw-.sdmp, mG0CUyFnyP.elf, 5481.1.00007fffa9565000.00007fffa9586000.rw-.sdmp Binary or memory string: xO5A*x86_64/usr/bin/qemu-mipsel/tmp/mG0CUyFnyP.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/mG0CUyFnyP.elf
Source: mG0CUyFnyP.elf, 5479.1.00005625cb5d6000.00005625cb65d000.rw-.sdmp, mG0CUyFnyP.elf, 5481.1.00005625cb5d6000.00005625cb65d000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mipsel
Source: mG0CUyFnyP.elf, 5479.1.00005625cb5d6000.00005625cb65d000.rw-.sdmp, mG0CUyFnyP.elf, 5481.1.00005625cb5d6000.00005625cb65d000.rw-.sdmp Binary or memory string: %V!/etc/qemu-binfmt/mipsel
Source: mG0CUyFnyP.elf, 5479.1.00007fffa9565000.00007fffa9586000.rw-.sdmp, mG0CUyFnyP.elf, 5481.1.00007fffa9565000.00007fffa9586000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mipsel

Stealing of Sensitive Information
barindex
Yara detected Gafgyt
Source: Yara match File source: mG0CUyFnyP.elf, type: SAMPLE
Sample contains strings that are user agent strings indicative of HTTP manipulation
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

Remote Access Functionality
barindex
Yara detected Gafgyt
Source: Yara match File source: mG0CUyFnyP.elf, type: SAMPLE

No Screenshots

  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
94.156.79.48
 unknown Bulgaria
43561 NET1-ASBG true

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
94.156.79.48:23 true
    		unknown